{"data":{"slug":"zfinia-machine-economy-intelligence","name":"zFinia Machine API - Intelligence and Contract Utilities","description":"Five pay-per-call services for agents: machine-economy changes since a cursor with provenance; flat-field data compatibility checks; WCAG colour-pair contrast calculation; Product JSON-LD/Offer evidence extraction from supplied HTML; and merchant service contract regression reports. Structured outputs over x402 v2 exact USDC on Base. 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This delta feed includes material additions, corrections and retractions with provenance and nextCursor for caller-managed polling; an empty result is valid. No transaction feed, built-in scheduler, generic web search or exhaustive ecosystem monitoring.","mime_type":"application/json","is_active":true,"first_seen_at":"2026-09-14T19:22:00.029Z","last_seen_at":"2026-10-24T00:08:38.117Z","variable_amount":false,"min_price_usd":0.01,"networks":["BSE"],"pricing":[{"scheme":"exact","network":"eip155:8453","network_caip2":"eip155:8453","asset_address":"0x833589fCD6eDb6E08f4c7C32D4f71b54bdA02913","asset_address_norm":"0x833589fcd6edb6e08f4c7c32d4f71b54bda02913","asset_name":"USDC","price":"10000","price_usd":"0.0100000000","pay_to":"0x25e8245f07d5e4873987293dad666afbe56a9608","max_timeout_seconds":60}],"pay_to_divergence":null},{"id":"3693f8c5-f28d-4504-8aab-7b511a21cfa0","method":"POST","path":"/x402/v1/accessibility-contrast-calculator","description":"Calculate WCAG 2.x sRGB contrast for one caller-supplied foreground/background pair of hex colours (#RRGGBB). 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Returns deterministic normalized Product/Offer JSON, including supplied price and currency when present, with source HTML and record SHA-256 hashes. Performs no URL fetching or browser execution; hashes do not prove authenticity and supplied prices may be stale.","mime_type":"application/json","is_active":true,"first_seen_at":"2026-09-21T11:11:29.108Z","last_seen_at":"2026-10-24T00:08:38.130Z","variable_amount":false,"min_price_usd":0.1,"networks":["BSE"],"pricing":[{"scheme":"exact","network":"eip155:8453","network_caip2":"eip155:8453","asset_address":"0x833589fCD6eDb6E08f4c7C32D4f71b54bdA02913","asset_address_norm":"0x833589fcd6edb6e08f4c7c32d4f71b54bda02913","asset_name":"USDC","price":"100000","price_usd":"0.1000000000","pay_to":"0x25e8245f07d5e4873987293dad666afbe56a9608","max_timeout_seconds":60}],"pay_to_divergence":null},{"id":"4ef901c3-4a1f-4aa5-b92d-6fb4a3b8d406","method":"POST","path":"/x402/v1/data-compatibility-checker","description":"Compare caller-supplied source and target flat field schemas before ingestion, migration, CI deployment or machine-to-machine handoff. Returns a deterministic JSON mismatch report with type incompatibilities, missing required fields, nullability warnings and remediation codes. Does not fetch data or validate nested schemas, data values or runtime API behaviour.","mime_type":"application/json","is_active":true,"first_seen_at":"2026-09-21T11:11:29.108Z","last_seen_at":"2026-10-24T00:08:38.123Z","variable_amount":false,"min_price_usd":0.003,"networks":["BSE"],"pricing":[{"scheme":"exact","network":"eip155:8453","network_caip2":"eip155:8453","asset_address":"0x833589fCD6eDb6E08f4c7C32D4f71b54bdA02913","asset_address_norm":"0x833589fcd6edb6e08f4c7c32d4f71b54bda02913","asset_name":"USDC","price":"3000","price_usd":"0.0030000000","pay_to":"0x25e8245f07d5e4873987293dad666afbe56a9608","max_timeout_seconds":60}],"pay_to_divergence":null}],"pay_to_changes":[],"assessment":{"updated_at":"2026-10-23T20:53:08.517Z","input_hash":"46c5482df1889720ebeafc536e61db8785e078de8484b6e4a7df21bf6b6afdd6","model_id":null,"prompt_version":null,"reliability":{"uptime":{"24h":100,"7d":100,"30d":98.2,"90d":98.1},"response_p95_ms":2623,"avg_response_ms":1535,"last_checked_at":"2026-10-23T20:37:40.176Z","consecutive_failures":0,"total_checks":2621},"compliance":{"grade":"A","passed":14,"total":14,"checks":[{"id":"payload_captured","label":"402 payload captured","pass":true},{"id":"accepts_present","label":"accepts[] array present","pass":true},{"id":"payto_recoverable","label":"payTo address recoverable","pass":true},{"id":"payto_conformant","label":"payTo at accepts[0].payTo (conformant shape)","pass":true},{"id":"payto_shape","label":"payTo is a valid on-chain address","pass":true},{"id":"price_present","label":"atomic price declared","pass":true},{"id":"price_sane","label":"atomic price in a sane range","pass":true},{"id":"asset_declared","label":"asset (token) address declared","pass":true},{"id":"network_caip2","label":"network resolves to CAIP-2","pass":true},{"id":"scheme_declared","label":"payment scheme declared","pass":true},{"id":"transport_https","label":"served over HTTPS","pass":true},{"id":"x402_version_current","label":"declares the current x402 version (2)","pass":true},{"id":"eip712_domain_extra","label":"EIP-712 domain parameters present on every EVM entry","pass":true},{"id":"version_channel_coherent","label":"x402 v2 envelope delivered in the payment-required header","pass":true}],"pay_to_source":"payTo","pay_to_location":"accept","staleness":{"probe_failing":false,"last_success_at":"2026-10-24T00:08:38.140Z","envelope_captured_at":"2026-09-21T11:39:17.453Z"}},"site":{"homepage":true,"openapi":true,"pricing":false,"llms_txt":true,"robots":true,"terms":true,"checked_at":"2026-10-23T20:53:05.970Z"},"domain":{"age_days":98,"registrar":"Dreamscape Networks International Pte Ltd","free_host":false,"created_date":"2026-07-14T01:50:40.000Z","checked_at":"2026-10-20T18:53:01.636Z"},"economics":{"price_usd":0.001,"price_atomic":"1000","model":"tiered","category_percentile":9,"stability":1,"price_max_usd":0.1,"category_percentile_max":71,"endpoint_count":4,"distinct_price_count":4},"risk":{"level":"clean","flags":[]},"synthesis":null,"traction":{"status":"measured","volume_usd_30d":24.942,"tx_count_30d":216,"unique_buyers_30d":9,"last_settlement_at":"2026-10-21T06:02:29Z","top_buyer_share_30d":0.9813567476545586,"top_3_buyers_share_30d":0.9949081869938258,"concentrated_volume":true,"trend_7d_vs_30d":0.006185779580054297,"shared_payout":false,"shared_with":0,"measured_networks":["eip155:8453"],"first_settlement_at":"2026-08-18T13:50:07Z","volume_usd_all_time":25.28,"tx_count_all_time":252,"median_settlement_usd_30d":0.125,"max_settlement_usd_30d":0.3,"settled_via":["coinbase"],"settled_via_detail":[{"id":"coinbase","volume_usd_30d":24.942,"tx_count_30d":216}],"shared_with_services":[],"pro_quota_share":1,"caveat":"Conservative undercount: only USDC settlements via facilitators we measure are counted. A measured floor, not an estimate.","all_time_caveat":"All-time is floored at the start of our harvest window, not the service full history."}}},"provenance":{"license":"CC-BY-4.0","attribution_required":true,"attribution":"Data: x402-list.com (CC BY 4.0)","cite_as":"https://x402-list.com/services/zfinia-machine-economy-intelligence","source":"https://x402-list.com"}}